Russia will no longer be able to use its U.S. dollar accounts with U.S. banks to repay coupons on dollar bonds, according to a decision by the U.S. Treasury Department.

After freezing the Russian central bank’s foreign exchange reserves, Western countries prevented Moscow from paying interest on foreign debt due on Monday.

However, Moscow was able to meet its obligations on dollar bonds earlier, preventing the possibility of Russia defaulting on its foreign debt.

Moscow may have to use foreign currency reserves held domestically to meet its economic obligations to the West.

The decision goes against the U.S. government’s previous decision on March 17, when Russia paid a $117 million coupon using its central bank’s frozen funds in the United States.

The move comes at a sensitive time for Russia, as Europe mulls a full embargo on Russian gas and crude oil and Moscow faces a capital payment of $552.4 million on bonds that matured on Monday and an $84 million coupon on dollar bonds maturing in 2042.

The bonds and coupons have a 30-day “grace period” during which the debt can be repaid, but once that threshold is exceeded, Russia’s foreign debt will be considered unpaid. To avoid this, the Kremlin has made it clear that payments on foreign debt will be made in rubles. Defaulting on the foreign debt would not give Moscow access to the international market until the debt to creditors is fully repaid, including the legal consequences of default.